---
product_id: 583256840
title: "[Alkaline] Waterdrop Water Filter for Sink Faucet, NSF/ANSI 42 Certified Countertop Water Filter System, 5-Stage Stainless Steel Faucet, 8000 Gallons, Reduces 99% Chlorine, WD-CTF-03(1 Filter)"
brand: "waterdrop"
price: "¥24819"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/583256840-alkaline-waterdrop-water-filter-for-sink-faucet-nsf-ansi-42
store_origin: JP
region: Japan
---

# 8,000 gallons / 12 months lifespan 99% chlorine reduction 5-stage multi-filtration [Alkaline] Waterdrop Water Filter for Sink Faucet, NSF/ANSI 42 Certified Countertop Water Filter System, 5-Stage Stainless Steel Faucet, 8000 Gallons, Reduces 99% Chlorine, WD-CTF-03(1 Filter)

**Brand:** waterdrop
**Price:** ¥24819
**Availability:** ✅ In Stock

## Summary

> 💦 Elevate your hydration game with sleek, alkaline purity!

## Quick Answers

- **What is this?** [Alkaline] Waterdrop Water Filter for Sink Faucet, NSF/ANSI 42 Certified Countertop Water Filter System, 5-Stage Stainless Steel Faucet, 8000 Gallons, Reduces 99% Chlorine, WD-CTF-03(1 Filter) by waterdrop
- **How much does it cost?** ¥24819 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/583256840-alkaline-waterdrop-water-filter-for-sink-faucet-nsf-ansi-42)

## Best For

- waterdrop enthusiasts

## Why This Product

- Trusted waterdrop brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting & Fast Flow:** Filters up to 8,000 gallons with a rapid 1.6 GPM flow rate—never compromise on convenience.
- • **Pure & Powerful Filtration:** Advanced 5-stage system slashes chlorine, heavy metals & fluoride for crisp, clean water.
- • **Alkaline Boost for Wellness:** Elevates pH by 1.5-2.5 units, infusing essential minerals like calcium & magnesium for daily vitality.
- • **Sleek Stainless Steel Design:** Fingerprint-resistant, BPA-free brushed steel that complements your modern kitchen aesthetic.
- • **Effortless Installation & Versatility:** Twist-on setup fits most standard faucets with included adapters—perfect for home, office, or RV.

## Overview

The Waterdrop WD-CTF-03 is a NSF/ANSI 42 certified countertop faucet water filter featuring a 5-stage stainless steel filtration system that reduces 99% of chlorine and other contaminants. It enhances water with alkaline minerals, raising pH by up to 2.5 units, and delivers up to 8,000 gallons of filtered water at 1.6 gallons per minute. Designed for standard faucets, it combines health benefits, durability, and style in a compact, easy-to-install unit.

## Description

Full description not available

## Features

- 𝐈𝐦𝐩𝐨𝐫𝐭𝐚𝐧𝐭 𝐍𝐨𝐭𝐞: Does not reduce TDS. Works with standard faucets only. Does not fit pull-out, handheld, spray-style faucets, or faucets with sensors. This water filter for sink faucet is compatible with most standard faucet types. Please refer to the product images for detailed installation instructions. If you're unsure whether your faucet is compatible with the Waterdrop faucet water filter, please take a photo and contact us before purchasing.
- One filter is included in the package. This countertop water filter system is compatible only with the WD-CFF-02 filter. To purchase a replacement, search for "WD-CFF-02." Note: It does not support the WD-CFF-01 replacement filter. This system is compatible with standard faucets only; special-shaped faucets may not fit properly.
- 𝐀𝐝𝐯𝐚𝐧𝐜𝐞𝐝 𝐀𝐥𝐤𝐚𝐥𝐢𝐧𝐞 𝐌𝐮𝐥𝐭𝐢-𝐒𝐭𝐚𝐠𝐞 𝐅𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Our countertop water filter system uses an advanced multi-stage filtration process that effectively reduces common tap water impurities, including colloids, sediment, up to 99% of chlorine, heavy metals, hydrogen sulfide, and fluoride. This water filter for sink faucet ensures your drinking water is safe, fresh, and great-tasting. (Tested by a third-party laboratory.)
- 𝐇𝐞𝐚𝐥𝐭𝐡-𝐄𝐧𝐡𝐚𝐧𝐜𝐢𝐧𝐠 𝐀𝐥𝐤𝐚𝐥𝐢𝐧𝐞 𝐖𝐚𝐭𝐞𝐫: With our countertop water filter system, you can experience the benefits of alkaline spring water, with a pH increase of 1.5 to 2.5 units. This water filter for sink faucet not only removes impurities but also adds essential minerals like calcium, magnesium, and potassium, promoting your overall well-being.
- 𝐒𝐥𝐞𝐞𝐤, 𝐒𝐚𝐟𝐞 𝐃𝐞𝐬𝐢𝐠𝐧: Crafted from 304 food-grade stainless steel with a sleek brushed finish, our countertop water filter system is not only aesthetically pleasing but also fingerprint-resistant and BPA-free. This water filter for sink faucet ensures access to clean and healthy drinking water, combining both safety and style.
- 𝐋𝐨𝐧𝐠 𝐒𝐞𝐫𝐯𝐢𝐜𝐞 𝐋𝐢𝐟𝐞 𝐚𝐧𝐝 𝐑𝐚𝐩𝐢𝐝 𝐅𝐥𝐨𝐰: Once connected to your municipal tap water, this water filter for sink faucet provides up to 12 months or 8,000 gallons of filtered water. With advanced filtration technology, our system delivers a fast flow rate of up to 1.6 gallons per minute, ensuring both convenience and reliability.
- 𝐕𝐞𝐫𝐬𝐚𝐭𝐢𝐥𝐞 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐔𝐬𝐚𝐠𝐞: Our alkaline water filter, designed as a water filter for sink faucet, is easy to install with a simple twist-on setup that fits most standard faucets. It also comes with multiple faucet adapters for added compatibility. Whether you need it in your kitchen, bathroom, RV, or office, this compact countertop water filter system meets your daily water needs, making it perfect for drinking, cooking, skincare, and cleaning. Say goodbye to impurities and enjoy refreshing, alkaline water with our comprehensive filtration system.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Waterdrop |
| Special Feature | NSF certified, Chlorine Reduction |
| Product Dimensions | 5"L x 7"W x 15"H |
| Package Information | Cartridge |
| Installation Type | Countertop |
| Purification Method | Alkaline |
| Power Source | Adapter |
| Model Name | WD-CTF-03 |
| Maximum Flow Rate | 1.6 Gallons Per Minute |
| Shelf Life | 365 Days |
| Manufacturer | Waterdrop |
| Part Number | WD-CTF-03 |
| Item Weight | 5.11 pounds |
| Item model number | WD-CTF-03 |
| Size | Alkaline Version-Basic |
| Color | Stainless Steel |
| Style | Alkaline Basic |
| Special Features | NSF certified, Chlorine Reduction |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Waterdrop
- **Special Feature:** Search "WD-CFF-02" for replacement filter later.
- **Product Dimensions:** 5"L x 7"W x 15"H
- **Material:** Stainless Steel
- **Capacity:** 8000 Gallons
- **Included Components:** Countertop Water Filtration System *1 (1 Filter included）
- **Package Information:** Cartridge
- **Installation Type:** Countertop
- **Purification Method:** Alkaline
- **Power Source:** Adapter

## Images

![[Alkaline] Waterdrop Water Filter for Sink Faucet, NSF/ANSI 42 Certified Countertop Water Filter System, 5-Stage Stainless Steel Faucet, 8000 Gallons, Reduces 99% Chlorine, WD-CTF-03(1 Filter) - Image 1](https://m.media-amazon.com/images/I/51u95MJFbKL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic unit at a great price!
*by S***C on September 24, 2025*

I love love love my WD CTF-01!! It replaced a discontinued Aquasana sink faucet model and, I must say, is even more compact, prettier, and with better water flow. Setup was a snap -- and the water tastes great. In use since April, the unit's water stream remains strong; no filter change in view. Speaking of which, I called Customer Service in a panic when I couldn't locate the wrench needed to open the unit when the time came. They sent a new one immediately, no cost. This is a terrific company. Customers' ***** reviews are merited. Happy to have found Waterdrop.

### ⭐⭐⭐⭐⭐ Nice little countertop filter
*by G***T on September 11, 2025*

So far it seems pretty good. Using it at a cabin with well water. Fits nicely on counter takes up very little space. Had it installed in about 5 minutes - very easy.

### ⭐⭐⭐⭐⭐ UPDATE to Great filter but a beast to open
*by M***6 on June 4, 2024*

UPDATED JUNE 2024: Immediately upon this review below being posted to amazon, the Waterdrop Filter Company reached out to me with great concern and a sincere desire to make good on their product. I had no idea when I posted the review to give potential buyers a heads up that the company would even look at the review much less respond with such a generous offer. They replaced the filter system at no cost and tossed in a free filter cartridge as well. The new filter system arrived and I noticed that the design is a bit different. Now there is a port on the bottom of the unit where a wrench type device can be inserted to give extra stability and leverage when it comes time to remove the filter cover to replace the cartridge. The tool to do this was also included with the cover wrench and all of the other accessories needed for easy installation. I have not tried to open the filter cover yet as it is a brand new unit, but I feel hopeful that in a year when the filter needs a cartridge replacement I will be able to open it. If not, I feel equally confident that I can contact the company and I will receive prompt help. I'm very impressed with and grateful to the company for the quick and generous resolution to my problem.This is the best countertop water filter I've ever owned. It does what it says it will do. The water tastes great and the unit itself is attractive, unobtrusive, and takes up very little space. My only problem, and it is a huge problem, is that I cannot open the filter when it's time to replace the filter cartridge. Yes, they provide a little wrench but it is absolutely impossible for anyone with no hand strength, with arthritis, or who is just weak in general and without anyone strong in the house to help out to change the filter. I found this out much too late after I'd already fallen in love with the things so today I had to order a brand new unit. I have no one I can ask for help. I read the instructions and I even found YouTube videos detailing how to open the unit but it's impossible. Fortunately, their priced low enough that the cost of buying a new filter is much less than what I was spending for drinking water yearly. They're really could have been a better way for them to have designed this unit for easier opening.

## Frequently Bought Together

- Waterdrop Alkaline Countertop Water Filter, 12 Months or 8,000 Gallons Long-Life, NSF/ANSI 42&372 Certified, Reduces Heavy Metals, Bad Odor and 99% Chlorine,WD-CTF-03(1 Filter Included)
- Waterdrop WD-CFF-02 Alkaline Replacement Filter, Replacement for WD-CTF-03/WD-CTF-04, Up PH 1.5 to 2.5, Multi-stage Water Filter, Reduces Heavy Metals, Bad Taste and Up to 99% of Chlorine,1Pack
- HoneForest Water Quality Tester, Accurate and Reliable, TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-29*